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TEA [102]
3 years ago
14

Charlene is knitting a baby blanket. She wants its width, w, to be at least half its length, l. She estimates that she has enoug

h yarn to put fringe around the blanket, as long as the perimeter of the blanket is no more than 180 inches. The system of inequalities shown represents the width of the blanket in inches, w, and the length in inches, l.
w ≥ 0.5l

2l + 2w ≤ 180
Mathematics
2 answers:
Nady [450]3 years ago
7 0

Answer:

60

Step-by-step explanation:

just did it

scoray [572]3 years ago
5 0
W <u>></u> 0.5L

Perimeter:
2L + 2W <u><</u> 180
2L + 2(0.5L) <u><</u> 180
2L + 1L <u><</u> 180
3L <u><</u> 180
<u>÷3       ÷3</u>
  L <u><</u> 60

Length should be less than or equal to 60 inches while width should be greater than or equal to 30 inches.
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Fourteen out of 20 teens said they eat breakfast every morning what is a reasonable prediction for the number of teens out of 12
Oksi-84 [34.3K]

Answer:

896

Step-by-step explanation:

14 of 20 teens eats breakfast every morning.

The percentage of those who eat breakfast every morning

= 14/20 x 100%

= 0.7 x 100%

= 70%

So, 70% of 20 teens eat breakfast every morning.

The reasonable prediction for the number of teens that eats breakfast every morning from 1280 teens will be 70% of 1280.

70/100 x 1280

0.7 x 1280

896

The prediction would be 896 out of 1280 teens eats breakfast every morning

8 0
3 years ago
What are the x-intercepts and y-intercepts of 2x + 3y = 6?
Sonja [21]
The y intercept is at 2 and the x intercept is at 3
3 0
3 years ago
What is the domain of the sine and cosine functions?
eimsori [14]

Answer:

domain of the sine and cosine functions is all real numbers

Step-by-step explanation:

range of both the sine and cosine functions is [−1,1]

graph can go left and right to infinity

graph goes up and down between 1 and -1

graph looks like a wave or

like U letters next to each other

UUUU

sine and cosine of an angle have the same absolute value as the sine and cosine of its reference angle.

mathlibretextsorg

8 0
2 years ago
If area of cross section of a prism is A cm² and height h cm then find the volume​
AfilCa [17]

Answer:

Volume= area of cross section*height

so, volume of prism = A*h

3 0
2 years ago
Find the area of a circle whose area equals the half of the sum of the areas of two circles with radil 2 and 3.
OlgaM077 [116]

Step-by-step explanation:

step 1. a circle with r = 2 has area of (pi)r^2 = (pi)(4) = 4pi

step 2. a circle with r = 3 has area of (pi)r^2 = (pi)(9) = 9pi

step 3. the area, A, of a circle is half the sum of the area of the circles with r = 2 and r = 3

step 4. A = (4pi + 9pi)/2 = 13pi/2 = 6.5(pi).

step 5. the answer is not 6.5 but is 6.5(pi) or 6.5 times pi.

8 0
2 years ago
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